Preparation method of glass transition temperature halogenless fire retardant glass cloth laminated board

A technology with transition temperature and high vitrification, applied in chemical instruments and methods, glass/slag layered products, lamination, etc., can solve problems such as poor heat resistance, low moisture resistance, and not very deep

Active Publication Date: 2007-07-18
SICHUAN DONGFANG INSULATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, the synthesis technology of phosphorus compounds and epoxy resin is not very deep, and some manufacturers simply use additive methods to achieve flame retardancy, resulting in some properties such as low moisture resistance and poor heat resistance.

Method used

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  • Preparation method of glass transition temperature halogenless fire retardant glass cloth laminated board
  • Preparation method of glass transition temperature halogenless fire retardant glass cloth laminated board
  • Preparation method of glass transition temperature halogenless fire retardant glass cloth laminated board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] 20 parts of benzoxazine resin containing aralkyl structure (in the structural formula (1)) solution (in terms of resin solid weight parts, the same below), phosphorus-containing epoxy resin [in the structural formula of phosphorus-containing epoxy resin (3)] 5 parts (in terms of resin solid weight parts, the same hereinafter), phosphorus-containing epoxy resin ((7) n=1-10 in the phosphorus-containing epoxy resin structural formula) 5 parts (in terms of resin solid weight parts, hereinafter the same), 0.02 parts of 2-methylimidazole, 50 parts of butanone, 15 parts of toluene, and 15 parts of inorganic flame retardant silicon dioxide.

Embodiment 2

[0087] 90 parts of benzoxazine resin (in the structural formula (1)) solution containing aralkyl structure, 80 parts of phosphorus-containing epoxy resin ((7), n=1-10 in the structural formula of phosphorus-containing epoxy resin), 4, 10 parts of 4' diaminodiphenyl sulfone, 0.05 part of N, N dimethylbenzylamine, 40 parts of butanone, 25 parts of ethylene glycol dimethyl ether, organic phosphorus-containing flame retardant (organic phosphorus-containing flame retardant in the structural formula (b)) 5 parts, 10.5 parts of inorganic flame retardant aluminum hydroxide.

Embodiment 3

[0089] 90 parts of benzoxazine resin (in structural formula (2)) solution containing aralkyl structure, 50 parts of bisphenol A diglycidyl ether epoxy resin, epoxy curing agent (in the epoxy curing agent structural formula containing P structure (b)) 15 parts, 25 parts of phosphorus-containing epoxy resin ((3) in the structure formula of phosphorus-containing epoxy resin), 3.5 parts of 4,4' diaminodiphenylmethane, 0.04 parts of 2-ethyl-4-methylimidazole 20 parts, 20 parts of dimethylformamide, 35 parts of butanone, 3 parts of organic phosphorus-containing flame retardant ((d) in the structural formula of organic phosphorus-containing flame retardant), 20 parts of inorganic flame retardant magnesium hydroxide.

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Abstract

The present invention relates to a preparation method of high glass-transition temperature halogen-free flame-retardant glass cloth laminated plate. Said method includes the following steps: (1), preparing halogen-free flame-retardant resin adhesive by using benzoxazine resin containing aralkyl structure, flame-retardant epoxy resin or general epoxy resin, solidifying agent, solidification accelerator, solvent and inorganic or organic flame-resisting agent according to a certain mixing ratio; (2), preparing glass cloth preimpregnated material; and (3), pressing so as to obtain the invented product.

Description

technical field [0001] The invention relates to a preparation method of a high glass transition temperature halogen-free flame-retardant glass cloth laminate, which is especially suitable for preparing a high glass transition temperature (Tg) halogen-free flame-retardant copper-clad foil substrate or 180-grade and 200-grade glass cloth laminate. Background technique [0002] The European Commission published the "Waste Electrical and Electronic Equipment Directive" (referred to as "WEEE Directive") and "Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment" (referred to as "RoHS") in its "Official Gazette" on February 13, 2003. instruction"). It is required that from July 1, 2006, harmful substances such as lead, mercury, cadmium, hexavalent chromium, polybrominated diphenyl ether (PBDE) and polybrominated biphenyl (PBB) are prohibited in new electronic and electrical equipment put on the market. These two prohibitions are an importa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/00B32B38/08B32B17/02C09D179/00C09D163/00
Inventor 刘锋唐安斌许自贵李仕文
Owner SICHUAN DONGFANG INSULATING MATERIAL
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